Patent DE36806C successfully refreshed from Google Patents.
US4198520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonionic monomeric emulsion stabilizers
Assignee: Kendall Co
•
Filing: 1977-10-21
•
Granted: 1980-04-15
•
Expires: 1997-10-21
Abstract
Abstract Compounds containing a lipophilic radical, a polyethyleneoxy group and an ethylenically unsaturated radical are disclosed. The compounds are useful as nonionic monomeric emulsion stabilizers.
Inventors
- 👤 Carlos M. Samour
- 👤 Mildred C. Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:10
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A compound having the formula ROV wherein V is 2-acryloyloxyethyl, 2-methacryloyloxyethyl, 3-acryloyloxy-2-hydroxypropyl, 3-methacryloyloxy-2-hydroxypropyl, allyl, methallyl, 3-allyloxy-2-hydroxypropyl or 3-methallyloxy-2-hydroxypropyl and R is ##STR17## wherein Y is O-phenylene or O-phenylene in which one or more of the hydrogen atoms is replaced by a lower alkyl group or by a halogen atom; n is an integer from 9 to 50; L is C 8 to C 28 aliphatic hydrocarbon linked to the oxygen directly or covalently thereto through a phenylene linkage.
Claim 2
Dependent Claim
78 words
A compound having the formula ROV wherein V is 2-acryloyloxyethyl, 2-methacryloyloxyethyl, 3-acryloyloxy-2-hydroxypropyl, 3-methacryloyloxy-2-hydroxypropyl, allyl, methallyl, 3-allyloxy-2-hydroxypropyl or 3-methallyloxy-2-hydroxypropyl and R is ##STR17## wherein Y is O-phenylene or O-phenylene in which one or more of the hydrogen atoms is replaced by a lower alkyl group or by a halogen atom; n is an integer from 9 to 50; L is C 8 to C 28 aliphatic hydrocarbon linked to the oxygen directly or covalently thereto through a phenylene linkage.
References Cited (Backward Citations)
US3367992A
Cited
US3960935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |